I'm Getting Too Big for This: Amir Malekpour, veteran of the S.F. comedy clubs, went on hiatus a couple of years back. During that time, he lost 210 pounds and gained a raft of new material, some of which he'll be presenting Saturday night, joined by some of his favorite local comics. 7:30 p.m. Saturday. $5 suggested. Big Umbrella Studios, 906 1/2 Divisadero St., S.F. www.bigumbrellastudios.com.